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Gromov-Hausdorff distance for quantum metric spaces

Gromov-Hausdorff distance for quantum metric spaces

By a quantum metric space we mean a C * -algebra (or more generally an order-unit space) equipped with a generalization of the usual Lipschitz seminorm on functions which one associates to an ordinary metric.We develop for compact quantum metric spaces a version of Gromov-Hausdorff distance.We show that the basic …